Credit card repayment/interest question

The big piece of paper that you signed before you received the card will have the details on it.

I read that before I posted and it's still slightly ambiguous...

you will only pay 19% APR on the purchases, any repayments you make will pay off the highest APR first, i.e. the purchases and then the 0% balance transfer.

...this is what is suggested by the wording in said big piece of paper but I'm not completely certain and it's a hard question to pose to google.